Drawing a pie chartSuppose we are given data like
We convert
Percentage → Angles
We know that
Angle at center = 360°
So, we convert
So, our table becomes.
We follow the steps
1. Draw a circle of any radius.
Mark Radius as OA.
2. Put protractor on AO and
Draw largest angle 144°
3. Now, put protractor on AO
and
Mark next largest angle 90°
4. Now, put protractor on OC and
Mark next largest angle 72°
5. The remaining portion is 54°
6. Now, label the pie chart
Let’s take another example
We are given the type of movie that students of class VIII like are
Draw a pie chart of the same
Suppose we are given data in following from
Now to make pie chart we have find angles
We follow these steps
1. Draw a circle of any radius.
Mark Radius as OA.
2. Put protractor on OA and
Draw largest angle i.e 180°
3. Now, put protector on OB,
and draw the next largest
angle i.e 90°
4. Put protractor on OC and
mark next largest angle i.e 72°
5. The remaining portion is 18°
6. Now, Label the pie chart